Petra Wegner / Cavalier King Charles Spaniels, ruby and tricolour, sitting in snow.

Konrad Wothe / Eclectus Parrot (Eclectus roratus) courtship behaviour in rainforest, Cape York Peninsula, North Queensland, Australia, captive

Konrad Wothe / Eclectus Parrot (Eclectus roratus) pair in rainforest, female on right, Cape York Peninsula, North Queensland, Australia, captive

Aflo / Group portrait of three Chihuahua puppies, sitting on white towels

Petra Wegner / Five Cavalier King Charles Spaniel sitting, black-and-tan, tricolour, blenheim and ruby coated, sitting in autumn leaves

Petra Wegner / Two Cavalier King Charles Spaniels, blenheim and tricolour coated, sitting wearing reindeer antlers

Petra Wegner / Two Miniature Schnauzers, black-silver and pepper-and-salt coated, sitting in autumn foliage

Petra Wegner / Cavalier King Charles Spaniel, ruby, black-and-tan, tricolour and blenheim, sitting in line on beach, panting

Petra Wegner / Lion-maned Dwarf Domestic Rabbits, 13 weeks, Dwarf Rabbit, and Satin Lop-eared Dwarf Rabbit, 8 weeks

Philippe Clement / Bluebells (Hyacinthoides non-scripta) white morph amongst blue flowers, Belgium

Michael Hutchinson / Bluebells (Hyacinthoides non-scripta); white form next to normal blue form, North Somerset, UK

Jane Burton / Domestic cat (Felis catus) 8-week-old kittens